<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
	</body>
	<script>
		var es0=()=>{
			console.log("es0无参")
		}
		es0()
		
		var es1=(arg)=>{
			return arg
		}
		console.log(es1("es1 一个参数"))
		
		var es2=(a,b)=>a+b
		console.log(es2(20,30))
		
		var str="我屌尼玛的"
		console.log(str)
	</script>
</html>
